Practice Krebs Cycle (Citric Acid Cycle) - 3.3.2.2 | Chapter 3: Energy Systems | IB Grade 12 Physical and Health Education (SEHS)
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Krebs Cycle (Citric Acid Cycle)

3.3.2.2 - Krebs Cycle (Citric Acid Cycle)

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Where does the Krebs Cycle occur in the cell?

💡 Hint: Think of the powerhouse of the cell.

Question 2 Easy

What is Acetyl-CoA derived from?

💡 Hint: Recall the process right before the Krebs Cycle.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the main function of the Krebs Cycle?

Generate Lactic Acid
Produce ATP and Energy Carriers
Store Glucose

💡 Hint: Remember its role in metabolism.

Question 2

True or False: The Krebs Cycle produces more ATP than it uses.

True
False

💡 Hint: Think about the outputs of the cycle.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

If a person is exercising at high intensity without adequate oxygen supply, how does this impact the Krebs Cycle and overall ATP production? Explain using metabolic pathways.

💡 Hint: Consider how oxygen's role in cellular respiration changes energy production.

Challenge 2 Hard

Evaluate the overall importance of the Krebs Cycle in different types of physical activities, such as sprinting vs. marathon running. How would their energy systems differ?

💡 Hint: Think about energy duration and intensity requirements in various sports.

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